How to point autogen.sh to our own sourced and compiled ffmpeg/libavcodec

[pcarrillom]

Hello,

We are trying to compile ultragrid in UBuntu 18.04, but autogen.sh won’t find our own ffmpeg build. So it is not compiling libavcodec encoders.
Where is autogen looking for libavcodec/ffmpeg?
Which files is exactly autogen looking for?
Can we point autogen to a specific location for this?

Thanks!

[MartinPulec]

Hi,

you can look at this part of configure.

First, pkg-config lookup is performed and if libavcodec (et al.) is not found, individual headers/libs are searched for. So I'd suggest to point PKG_CONFIG_PATH to your FFmpeg location (the pkgconfig/ subdirectory). Otherwise (the second look-up option), you'd need to set CPATH/LIBRARY_PATH (and perhaps also LD_LIBRARY_PATH). For debugging, you can also look to config.log to see what was not found (if something).

Martin